Design and fabrication of a 315 μΗ bondwire micro-transformer for ultra-low voltage energy harvesting

• Published in: 2014 Design, Automation & Test in Europe Conference & Exhibition (DATE) pp. 1 - 4
• Main Authors: Macrelli, Enrico, Wang, Ningning, Roy, Saibal, Hayes, Michael, Paganelli, Rudi Paolo, Tartagni, Marco, Romani, Aldo
• Format: Conference Proceeding
• Language: English
• Published: EDAA 01.03.2014
• Subjects: Bonding; bonding wires; bondwire; converter; DC-DC; energy harvesting; ferrite; Ferrites; Layout; magnetics; on-chip; PCB; Toroidal magnetic fields; transformer; Transformer cores; Wires

This paper presents a design study of a new topology for miniaturized bondwire transformers fabricated and assembled with standard IC bonding wires and toroidal ferrite (Fair-Rite 5975000801) as a magnetic core. The microtransformer realized on a PCB substrate, enables the build of magnetics on-top-...